β -delayed neutron emission from Ga 85

K. Miernik; K. P. Rykaczewski; R. Grzywacz; C. J. Gross; M. Madurga; D. Miller; D. W. Stracener; J. C. Batchelder; N. T. Brewer; A. Korgul; C. Mazzocchi; A. J. Mendez; Y. Liu; S. V. Paulauskas; J. A. Winger; M. Wolińska-Cichocka; E. F. Zganjar

doi:10.1103/PhysRevC.97.054317

β -delayed neutron emission from Ga 85

K. Miernik, K. P. Rykaczewski, R. Grzywacz, C. J. Gross, M. Madurga, D. Miller, D. W. Stracener, J. C. Batchelder, N. T. Brewer, A. Korgul, C. Mazzocchi, A. J. Mendez, Y. Liu, S. V. Paulauskas, J. A. Winger, M. Wolińska-Cichocka, E. F. Zganjar

Medical Isotopes and Development

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Abstract

Decay of Ga85 was studied by means of β-neutron-γ spectroscopy. A pure beam of Ga85 was produced at the Holifield Radioactive Ion Beam Facility using a resonance ionization laser ion source and a high-resolution electromagnetic separator. The β-delayed neutron emission probability was measured for the first time, yielding 70(5)%. An upper limit of 0.1% for β-delayed two-neutron emission was also experimentally established for the first time. A detailed decay scheme including absolute γ-ray intensities was obtained. Results are compared with theoretical β-delayed emission models.

Original language	English
Article number	054317
Journal	Physical Review C
Volume	97
Issue number	5
DOIs	https://doi.org/10.1103/PhysRevC.97.054317
State	Published - May 15 2018

Funding

We would like to thank the HRIBF operations staff for the production of exceptional radioactive ion beams and for assisting with the experiments. The research of K.M. was partially performed with support from a Eugene P. Wigner Fellowship at the Oak Ridge National Laboratory, managed by UT-Battelle, LLC, for the U.S. Department of Energy under Contract No. DE-AC05-00OR22725. This work was supported by the Polish National Science Center under Contract No. UMO-2015/18/E/ST2/00217 and by the Office of Nuclear Physics, U. S. Department of Energy under Contracts No. DE-AC05-00OR22725 (ORNL), No. DE-FG02-96ER40983 (UTK), No. DE-FG-05-88ER40407, No. DE-SC00-144448 (MSU), No. DE-AC05-06OR23100 (ORAU), and No. DE-AC02-05CH11231 (UC), and by National Nuclear Security Administration under the Stewardship Science Academic Alliances program through DOE Award No. DE-NA0002132.

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Miernik, K., Rykaczewski, K. P., Grzywacz, R., Gross, C. J., Madurga, M., Miller, D., Stracener, D. W., Batchelder, J. C., Brewer, N. T., Korgul, A., Mazzocchi, C., Mendez, A. J., Liu, Y., Paulauskas, S. V., Winger, J. A., Wolińska-Cichocka, M., & Zganjar, E. F. (2018). β -delayed neutron emission from Ga 85. Physical Review C, 97(5), Article 054317. https://doi.org/10.1103/PhysRevC.97.054317

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abstract = "Decay of Ga85 was studied by means of β-neutron-γ spectroscopy. A pure beam of Ga85 was produced at the Holifield Radioactive Ion Beam Facility using a resonance ionization laser ion source and a high-resolution electromagnetic separator. The β-delayed neutron emission probability was measured for the first time, yielding 70(5)%. An upper limit of 0.1% for β-delayed two-neutron emission was also experimentally established for the first time. A detailed decay scheme including absolute γ-ray intensities was obtained. Results are compared with theoretical β-delayed emission models.",

author = "K. Miernik and Rykaczewski, {K. P.} and R. Grzywacz and Gross, {C. J.} and M. Madurga and D. Miller and Stracener, {D. W.} and Batchelder, {J. C.} and Brewer, {N. T.} and A. Korgul and C. Mazzocchi and Mendez, {A. J.} and Y. Liu and Paulauskas, {S. V.} and Winger, {J. A.} and M. Woli{\'n}ska-Cichocka and Zganjar, {E. F.}",

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AU - Miernik, K.

AU - Rykaczewski, K. P.

AU - Grzywacz, R.

AU - Gross, C. J.

AU - Madurga, M.

AU - Miller, D.

AU - Stracener, D. W.

AU - Batchelder, J. C.

AU - Brewer, N. T.

AU - Korgul, A.

AU - Mazzocchi, C.

AU - Mendez, A. J.

AU - Liu, Y.

AU - Paulauskas, S. V.

AU - Winger, J. A.

AU - Wolińska-Cichocka, M.

AU - Zganjar, E. F.

PY - 2018/5/15

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AB - Decay of Ga85 was studied by means of β-neutron-γ spectroscopy. A pure beam of Ga85 was produced at the Holifield Radioactive Ion Beam Facility using a resonance ionization laser ion source and a high-resolution electromagnetic separator. The β-delayed neutron emission probability was measured for the first time, yielding 70(5)%. An upper limit of 0.1% for β-delayed two-neutron emission was also experimentally established for the first time. A detailed decay scheme including absolute γ-ray intensities was obtained. Results are compared with theoretical β-delayed emission models.

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β -delayed neutron emission from Ga 85

Abstract

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